Review reviewCritical

CVE-2023-6879

libaom libaom, aomedia, fedora

Increasing the resolution of video frames, while performing a multi-threaded encode, can result in a heap overflow in av1_loop_restoration_dealloc().

CVSS
9.8
EPSS
1.17%
64.2% percentile
CISA KEV
Not listed
Published
2023.12.28
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability1.17%
Technical severityCVSS 9.8

Vulnerability overview

Increasing the resolution of video frames, while performing a multi-threaded encode, can result in a heap overflow in av1_loop_restoration_dealloc().

Affected product and versions

Product
libaom libaom, aomedia, fedora
Affected versions
< 3.7.1, 38, 39
Fixed versions
3.7.1

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that libaom libaom, aomedia, fedora and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-20, CWE-787